PIDS is an algorithm for simplifying mathematical expressions, implemented in emacs lisp. pids-1.0.tar.gz – PIDS Version 1.0. If you use this code please cite
Daily archives: 17th June 1995
F. C. Langbein, S. G. Schirmer, K. Organtzoglou. The PIDS Algorithm. Technical Report, Mathematical Institute A, Stuttgart University, 1995. [DOI:10.13140/RG.2.1.2798.4728] [PDF]